DE10024460C2 - Dosing device for cryogenic liquids - Google Patents
Dosing device for cryogenic liquidsInfo
- Publication number
- DE10024460C2 DE10024460C2 DE2000124460 DE10024460A DE10024460C2 DE 10024460 C2 DE10024460 C2 DE 10024460C2 DE 2000124460 DE2000124460 DE 2000124460 DE 10024460 A DE10024460 A DE 10024460A DE 10024460 C2 DE10024460 C2 DE 10024460C2
- Authority
- DE
- Germany
- Prior art keywords
- dosing device
- container
- pipe
- pressure relief
- standpipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
- F17C2223/042—Localisation of the removal point
- F17C2223/046—Localisation of the removal point in the liquid
- F17C2223/047—Localisation of the removal point in the liquid with a dip tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
Die Erfindung betrifft eine Dosiereinrichtung für kryogene Flüssigkeiten.The invention relates to a metering device for cryogenic liquids.
Zur effektiven Prozessführung in der Kältetechnik ist eine kontrollierte Dosierung von kryogenen Flüssigkeiten wie Flüssigargon, -helium, methan, -neon, -sauerstoff, - stickstoff und -wasserstoff aus Behältern unabdingbar.Controlled dosing of is essential for effective process control in refrigeration technology cryogenic liquids such as liquid argon, helium, methane, neon, oxygen, nitrogen and hydrogen from containers are essential.
Eine Dosiereinrichtung für Flüssigstickstoff ist beispielsweise aus der GB 2 169 998 bekannt. Diese eine Spindel-Anordnung aufweisende Dosiereinrichtung besitzt aber keine, die Höhe der Flüssigkeitssäule in dem Reservoir konstant haltende Füllhöhenbegrenzung, sodass eine Dosierung von kryogener Flüssigkeit mit einer während des gesamten Dosierzeitraums konstanten Ausflussgeschwindigkeit nicht möglich ist.A metering device for liquid nitrogen is for example from the GB 2 169 998 known. This has a spindle arrangement Dosing device does not have the height of the liquid column in the Reservoir constant level limit, so a dosage of cryogenic liquid with a constant throughout the dosing period Outflow rate is not possible.
Der Erfindung liegt die Aufgabe zugrunde, eine einfache und wirtschaftliche Dosiereinrichtung für kryogene Flüssigkeiten zu schaffen.The invention has for its object a simple and economical To create a dosing device for cryogenic liquids.
Die Aufgabe wird durch eine Dosiereinrichtung mit den Merkmalen von Anspruch 1 gelöst.The object is achieved by a metering device with the features of claim 1 solved.
Die erfindungsgemäße Dosiereinrichtung für in Behältern lagernden kryogenen Flüssigkeiten mit der im Ausflussbereich des Bodenausflussrohrs des Standrohrs mittels Drehknopf vertikal verstellbaren Kegelspindel-Anordnung gewährleistet eine beliebige Veränderung der Querschnittsfläche des Ausflussbereiches des Bodenab flussrohrs und somit eine einfache, schnelle und exakte manuell-mechanische Flüssigkeitsdosierung ohne teure und zudem störanfällige elektrisch-elektronische Mess-, Regel- und Steuerkomponenten.The dosing device according to the invention for cryogenic stored in containers Liquids with the in the outflow area of the floor outlet pipe of the standpipe a vertically adjustable cone spindle arrangement ensures a any change in the cross-sectional area of the outflow area of the bottom flow tube and thus a simple, fast and precise manual-mechanical Liquid dosing without expensive and also fault-prone electrical-electronic Measuring, regulating and control components.
Die erfindungsgemäße Dosiereinrichtung für kryogene Flüssigkeiten ist besonders vorteilhaft zur Dosierung von leicht brennbaren kryogenen Flüssigkeiten, wie beispielsweise Flüssigwasserstoff, aber auch zur Dosierung von kryogenen Flüssigkeiten in Druckwechselprozessen geeignet.The dosing device according to the invention for cryogenic liquids is special advantageous for dosing easily flammable cryogenic liquids, such as for example liquid hydrogen, but also for dosing cryogenic Liquids suitable for pressure change processes.
Nachfolgend wird die Erfindung anhand eines in der Zeichnung dargestellten, bevorzugten Ausführungsbeispiel näher erläutert.The invention is described below with reference to a preferred embodiment explained in more detail.
Die Figur der Zeichnung zeigt eine bevorzugte Anordnung einer erfindungsgemäßen Dosiereinrichtung in einem doppelwandigen, beispielsweise mit Multishield-, Pulvervakuum, Vakuum, Faser- oder Schaumisolation wärmeisolierten Behälter 1.The figure of the drawing shows a preferred arrangement of a metering device according to the invention in a double-walled container 1 , for example with multishield, powder vacuum, vacuum, fiber or foam insulation.
Die im wärmeisolierten Innenraum des Behälters 1 angeordnete Dosiereinrichtung besteht im wesentlichen aus ein Standrohr 2 mit Bodenausflussrohr 3, in dessen oberen Ausflussbereich 4 ein, durch eine in der oberen Wandung des Behälters 1 angeordnete und ein Innengewinde aufweisende Dichtung 5 drehbar gelagerte und mittels Drehknopf-Wellen-Anordnung 6, 7 manuell-mechanisch, vertikal verstellbare Kegelspindel 8 angeordnet ist.The metering device arranged in the heat-insulated interior of the container 1 essentially consists of a standpipe 2 with a bottom discharge pipe 3 , in the upper discharge area 4 of which is rotatably supported by a seal 5 arranged in the upper wall of the container 1 and having an internal thread and by means of rotary knob shafts - Arrangement 6 , 7 manually-mechanically, vertically adjustable cone spindle 8 is arranged.
Die durch ein in der oberen Wandung des Behälters 1 angeordnetes Zulaufrohr 9 in das Standrohr 2 fließende tiefkalte Flüssigkeit wird durch die auf vorbeschriebene Weise vertikal verstellbare Kegelspindel 8 durch das Bodenausflussrohr 3 einer durch ein außerhalb des Behälters 1 am Bodenausflussrohr 3 angeordnetes, beispielsweise aus einem handelsüblichen Flansch bestehenden Anschlusselement 10 verbundenen Aufnahmeeinrichtung in gewünschter Menge dosiert.The cryogenic liquid flowing through an inlet pipe 9 arranged in the upper wall of the container 1 into the standpipe 2 is, by the cone spindle 8 vertically adjustable in the manner described above, through the bottom discharge pipe 3 one arranged through an outside of the container 1 on the bottom discharge pipe 3 , for example from a commercially available one Flange existing connecting element 10 connected receiving device metered in the desired amount.
Aus dem Standrohr 2 in den Innenraum des Behälters 1 einfließende kryogene Flüssigkeit kann durch ein ebenfalls im Innenraum angeordnetes Überlaufrohr 11 aus dem Behälter 1 abfließen. Die Form und Anordnung des Überlaufrohrs 11 ist so gewählt, dass im Standrohr 2 eine konstante Flüssigkeitshöhe gewährleistet ist.Cryogenic liquid flowing into the interior of the container 1 from the standpipe 2 can flow out of the container 1 through an overflow tube 11 likewise arranged in the interior. The shape and arrangement of the overflow pipe 11 is selected so that a constant liquid level is ensured in the standpipe 2 .
Zudem wird die im Innenraum des Behälters 1 vorhandene kryogene Flüssigkeit zum Kühlen der im Standrohr 2 befindlichen kryogenen Flüssigkeit genutzt, wodurch deren gasfreier Phasenzustand mit definierter Dichte gewährleistet wird.In addition, the cryogenic liquid present in the interior of the container 1 is used to cool the cryogenic liquid located in the standpipe 2 , as a result of which its gas-free phase state is guaranteed with a defined density.
Bei Überschreiten des zulässigen Drucks im Innenbehälter kann das im Innenraum des Behälters 1 vorhandene Gas durch eine in der oberen Wandung des Behälters 1 rohrförmig ausgebildete Druckentlastungsöfffnung 12 entströmen, welche mit einem herkömmlichen Druckentlastungsventil, wie beispielsweise ein Überström- und/oder Sicherheitsventil, ausgerüstet sein kann.If the permissible pressure in the inner container is exceeded, the gas present in the interior of the container 1 can escape through a pressure relief opening 12 which is tubular in the upper wall of the container 1 and which can be equipped with a conventional pressure relief valve, such as an overflow and / or safety valve ,
Zur exakten Dosierung der kryogenen Flüssigkeit aus dem Behälter 1 ist die Oberfläche des Drehknopfs 6 mit, die jeweilige Position der Kegelspindel 8 und damit die dosierte Flüssigkeitsmenge anzeigenden, einer durch praktische Dosierversuche ermittelten Korrekturfaktor enthaltenen Markierungen versehen. For exact dosing of the cryogenic liquid from the container 1 , the surface of the rotary knob 6 is provided with markings which indicate the respective position of the tapered spindle 8 and thus the dosed amount of liquid and contain a correction factor determined by practical dosing tests.
11
Behälter
container
22
Standrohr
standpipe
33
Bodenausflussrohr
Bottom outflow pipe
44
Ausflussbereich
outflow region
55
Dichtung
poetry
66
Drehknopf
knob
77
Welle
wave
88th
Kegelspindel
taper spindle
99
Zulaufrohr
supply pipe
1010
Anschlusselement
connecting element
1111
Überlaufrohr
Overflow pipe
1212
Druckentlastungsöffnung
Pressure relief opening
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000124460 DE10024460C2 (en) | 2000-05-18 | 2000-05-18 | Dosing device for cryogenic liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000124460 DE10024460C2 (en) | 2000-05-18 | 2000-05-18 | Dosing device for cryogenic liquids |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10024460A1 DE10024460A1 (en) | 2001-12-06 |
DE10024460C2 true DE10024460C2 (en) | 2002-07-04 |
Family
ID=7642592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000124460 Expired - Fee Related DE10024460C2 (en) | 2000-05-18 | 2000-05-18 | Dosing device for cryogenic liquids |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10024460C2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10161368A1 (en) * | 2001-12-14 | 2003-07-10 | Messer Griesheim Gmbh | Cryogenic cooling of aerosol product mixtures, especially for filling pharmaceutical dosed aerosols, comprises controlled thermal contact with vaporized cooling gas in heat exchanger |
EP2466187A1 (en) * | 2010-12-16 | 2012-06-20 | Air Products And Chemicals, Inc. | A gas storage container |
EP2652385A2 (en) * | 2010-12-16 | 2013-10-23 | Air Products and Chemicals, Inc. | A process for filling a gas storage container |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2092552A (en) * | 1980-12-17 | 1982-08-18 | Boc Ltd | Dispensing apparatus |
GB2169998A (en) * | 1985-01-18 | 1986-07-23 | Metal Box Plc | Liquid nitrogen metering device with nozzle of insulating material |
US5169031A (en) * | 1988-02-29 | 1992-12-08 | Air Products And Chemicals, Inc. | Dispenser for dispensing cryogenic liquid |
-
2000
- 2000-05-18 DE DE2000124460 patent/DE10024460C2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2092552A (en) * | 1980-12-17 | 1982-08-18 | Boc Ltd | Dispensing apparatus |
GB2169998A (en) * | 1985-01-18 | 1986-07-23 | Metal Box Plc | Liquid nitrogen metering device with nozzle of insulating material |
US5169031A (en) * | 1988-02-29 | 1992-12-08 | Air Products And Chemicals, Inc. | Dispenser for dispensing cryogenic liquid |
Also Published As
Publication number | Publication date |
---|---|
DE10024460A1 (en) | 2001-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: AIR LIQUIDE DEUTSCHLAND GMBH, 47805 KREFELD, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20111201 |